Youngstown doors. Decals used: SSADPRR16. Temporary trucks installed. See online article for how the model was built. The PRR built them over a period of ten years from 1924 to 1934. They had an 8.5-foot interior height. As initially built, these cars came with Creco doors, KD brakes, and Carmer cut levers. A total of 18,000 of those were built, in five different road number series. Starting in 1928, the cars were equipped with Youngstown doors. A total of 11,476 of those were built. Starting in 1932 the cars were being equipped with AB brakes, which was completed on almost all cars by the late 1940s to early 1950s. Note that some cars with the Creco doors remained in service until the 1960s. Other railroads used this same car design, so SSA has decals available for those as well.